code-reviewer

code-reviewer is a skill for Claude Code, Codex from kinhluan/rules-quarkus-skills. It costs 27 tokens per session (1,101 once invoked), scanned A, original, MIT.

A guide for reviewing code according to Google's engineering practices, covering correctness, readability, maintainability, efficiency, security, edge cases, and testability.

In plain words
What is it for?
Use it to review a code change after checking that it compiles and passes basic linting, then identify defects, risks, and maintainability problems.
Why use it?
It gives reviews a consistent checklist and encourages reviewers to explain requested changes so authors can learn from them.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Codex; mentions Gemini CLI.

Good fit Use it to review a code change after checking that it compiles and passes basic linting, then identify defects, risks, and maintainability problems.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/kinhluan/rules-quarkus-skills/code-reviewer
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add kinhluan/rules-quarkus-skills --skill code-reviewer
Clone the repo
git clone --depth 1 https://github.com/kinhluan/rules-quarkus-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for code-reviewer

README.md
[![agentmods](https://agentmods.dev/badge/skills/kinhluan/rules-quarkus-skills/code-reviewer/github.svg)](https://agentmods.dev/skills/kinhluan/rules-quarkus-skills/code-reviewer)
Your own site
<a href="https://agentmods.dev/skills/kinhluan/rules-quarkus-skills/code-reviewer"><img src="https://agentmods.dev/badge/skills/kinhluan/rules-quarkus-skills/code-reviewer/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for code-reviewer

Your own site · 80×15
<a href="https://agentmods.dev/skills/kinhluan/rules-quarkus-skills/code-reviewer"><img src="https://agentmods.dev/badge/skills/kinhluan/rules-quarkus-skills/code-reviewer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,101 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00027 $0.01101
Opus 5 $0.00014 $0.00550
Sonnet 5 $0.00005 $0.00220
Haiku 4.5 $0.00003 $0.00110

Measured 9d ago against content hash de437d7edd37, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

code-reviewer scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agent-skills/code-reviewer/SKILL.md · 76 lines

How it starts

The opening of the file, as written. The whole thing — 76 lines — stays where its author put it; the contents beside it link to each section on GitHub.

code-reviewer 🔍

Keyword: reviewer | Platforms: gemini,claude,codex

Expert AI Agent Skill for Code Reviewing - Standards and practices for reviewing code effectively based on Google's Engineering Practices.

🎯 Core Mandates (The Reviewer's Rules)

  • Preflight Check: Always check if the code compiles and passes basic linting before starting the deep review. If it fails, reject immediately with the error logs.
  • The Standard for Approval: Approve a CL if it is a net improvement, even if it's not perfect. Don't block for minor preferences.
  • Speed is Critical: Respond to code reviews within one business day.
  • Mentorship Mindset: Explain WHY you're requesting a change. Aim to teach the author.
  • 7 Pillars of Review: Conduct a holistic review based on:
    1. Correctness: Does the logic actually work?
    2. Readability: Is it easy to understand for future maintainers?
    3. Maintainability: Does it avoid technical debt and duplication?
    4. Efficiency: Are there obvious performance bottlenecks?
    5. Security: Does it introduce vulnerabilities (logging secrets, SQL injection)?
    6. Edge Cases: Does it handle null, empty inputs, and failures?
    7. Testability: Is the logic covered by unit tests that actually fail when logic is broken?

🛠 Reviewing Workflows

1. Preflight & High-Level View

  • Check compilation (mvn compile, bazel build).
  • Review the CL description. Is the intent clear? Are the "Risk Areas" called out?
  • Look for major architectural flaws first. Stop and discuss before nitpicking.

2. Deep Dive & Adversarial Logic Tracing

Use these "Adversarial" techniques to find hidden bugs:

  • The "What-If" Tracing: "Assume line X returns null or an empty list. Trace the execution path. Does it fail gracefully?"
  • The "Boundary" Analysis: "Check all comparison operators (>, <, ==). Verify if 'off-by-one' errors are possible."
  • The "Inversion" Check: "Can you find a sequence of inputs that would enter an infinite loop or cause a race condition?"

Read the full file on GitHub · 76 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 76 lines · 27 tokens per session scan A de437d7edd37

Subscribe to this mod's changes

code-reviewer is a skill published in the GitHub repository kinhluan/rules-quarkus-skills (3 stars, last pushed 3mo ago), licensed MIT. It adds 27 tokens to every session and 1,101 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Related

Other skills, from other repositories

spec-kitty-mission-review

Review a fully merged Spec Kitty mission post-merge (all WPs done/approved) to verify spec→code fidelity, FR coverage, drift, risks, and security. Triggers: "review the merged mission", "post-merge mission review", "verify the completed mission", "audit the mission implementation", "mission-level acceptance review"…

Priivacy-ai/spec-kitty · 155 tokens

spec-kitty-runtime-review

Review runtime-owned outputs using the Spec Kitty review workflow surface, then direct approval or rejection with structured feedback. Triggers: "review this work package", "check runtime output", "approve this step", "review WP", "is this WP ready to approve", "check this implementation". Does NOT handle: setup-only…

Priivacy-ai/spec-kitty · 85 tokens

simplify

This skill should be used when the user asks to "simplify", "clean up the diff", "run simplify", "simplify the changes", "review changed code for cleanup", explicitly invokes "/simplify", or asks to "commit without simplify", "skip simplify for this commit", or "commit this but skip simplify". Reviews changed code…

fcakyon/claude-codex-settings · 97 tokens

adversarial-squad

Deploy a bounded, profile-loaded adversarial review squad at an SDD point-cut (post-spec, post-plan, post-tasks, pre-merge, or an ad-hoc decision) so independent doctrine lenses converge on findings one reviewer would miss. Triggers: "deploy a squad", "adversarial squad", "post-tasks anti-laziness pass", "pre-spec…

Priivacy-ai/spec-kitty · 160 tokens

spk-gate-accept

Run the Spec Kitty accept gate for a completed mission and verify final readiness before merge.

Priivacy-ai/spec-kitty · 24 tokens

resolve-pr-comments

This skill should be used when user asks to "address PR comments", "resolve PR feedback", "handle review comments", "fix PR issues", "respond to PR review", or explicitly invokes "resolve-pr-comments".

fcakyon/claude-codex-settings · 47 tokens